475561623 has 4 divisors (see below), whose sum is σ = 634082168. Its totient is φ = 317041080.

The previous prime is 475561613. The next prime is 475561627. The reversal of 475561623 is 326165574.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 475561623 - 2⁵ = 475561591 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (475561627) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 79260268 + ... + 79260273.

It is an arithmetic number, because the mean of its divisors is an integer number (158520542).

Almost surely, 2^475561623 is an apocalyptic number.

475561623 is a deficient number, since it is larger than the sum of its proper divisors (158520545).

475561623 is a wasteful number, since it uses less digits than its factorization.

475561623 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 158520544.

The product of its digits is 151200, while the sum is 39.

The square root of 475561623 is about 21807.3754266762. The cubic root of 475561623 is about 780.5527656391.

The spelling of 475561623 in words is "four hundred seventy-five million, five hundred sixty-one thousand, six hundred twenty-three".